Sash balance



(No Model.) I 2 Sheets-Sheet. 1. T. B. ROSS.

SASH BALANCE.

No. 426,070. Patented Apr. 22, 1890.

WIT/VESSkfl INVENTOR.

W MVM/M Di it/$2.780 BYM M ATTORNEY 2 Sheets-Sheet 2. T. B. ROSS.

SASH BALANCE.

(No Model.)

No. 426,070. Patented Apr. 22, 1890.

INVENTOH 2 0211 J13, .FOJJ.

WIT/M59853.

0% aim/W,

ATTORNEY mam, WASH UNITE STATES PATENT OFFICE.

THOMAS B. ROSS, OF EVANSVILLE, INDIANA, ASSIGNOR TO THE ROSS SASH LOCK COMPANY, OF SAME PLACE.

SASH-BALANCE.

SPECIFICATION forming part of Letters Patent No. 426,070, dated April 22, 1890.

Application filed Fe r ary 8, 1889. Serial No. 299,223. (No model.)

To all whom it may concern.- 12 represent another modified form of the de- Be it known that I, THOMAS E. ROSS, a eit-ivice, in which a lever takes the place of the zen of the United States, residing at Evanskeys indicated in the previous figures, the ville, in the county of Vanderburg and State said lever being adapted to raise the pawl 5 of Indiana, have invented certain new and and disengage it from the gear-wheel, and

useful Improvements in Sash-Locks or VVinthus permit it to revolve upon its stud. (low-Fasteners; andl do declare the following The letter A indicates the window-frame; to be a full, clear, and exact description of 13, the sash; O, the rack-bar, which may be the invention, such as will enable others either a casting or of corrugated sheet metal. 1o skilled in the art to which it appertains to C is the gear-wheel.

make and use the same, reference being had D is one side of the box, and D is the to the accompanying drawings, and to the other, having a stud d, which is an integral letters of reference marked thereon, which part of that side of the box. form a part of this specification. d is a small recess in the upper part of the 6 5 I 5 This invention relates to improvements in box to receive and maintain in proper posiwindow-fasteners, and has for its object to tion a small spiral spring E, the lower end of lock the sash in any position in which it may which engages with a small stud f, forming a be placed, and thus prevent the sash from bepart of the pawl F. lhe spring E serves the ing either raised or lowered; and it consists, purpose to make the action of the pawl F 2o essentially, in combining a locking pawl or quicker than it might be if dependent solely key with a gear-wheel located in a box and upon its specific gravity to lock the gearadapted to revolve upon a stud forming a wheel. The pawl F hasa boss f on each side, part of one of the outer sides of the box, the which enters a depression in the opposite said stud being so arranged as to constitute sides of the box, (indicated in dotted lines in 2 5 the rivet or means of fastening the opposite Fig. 4.) The bosses f serve the purpose of sides of the box to each other, thereby simtrunnions and enable the pawl to oscillate plifying the construction and cheapening the thereon, and thereby enable it to drop into manufacture; also, in locating the box in the the spaces between the teeth of the gear- Window-easing in such position that the gearwheels. 30 0 wheel is adapted to engage a rack-bar at f is a square opening penetrating the tached to the adjacent edge of the windowpawl F, of the same cross-section as the key sash. G, which is adapted to fit closely therein, and Figure 1 is a side elevation of a part of a by means of which the pawl may be turned sash and window-frame, in section,- and the on its axis and its point F be raised from be- 8 5 3 5 box with one of the sides removed. Fig. 2 is tween the teeth of the geamvheel and pera detached view of the box complete and pormit the latter to revolve. The key G is tion of the Window-frame indicated in dotted pointed at g to facilitate its entrance into the lines. Fig. 3 is a detached view of the shield opening f. It has a round cross-section at having a central opening adapted to receive 9' to permit it to turn readily in the shield 40 and hold the key by means of which the pawl II. It has also a lip g, which prevents it may be raised, so as to permit the gear-wheel from becoming accidentally detached from to revolve. Fig. 4. is aview of the top of the the shield H through the opening ll and box, showing the pawl in dotted lines, also notch 71 the notch 7L permitting the lip g the key inserted therein and the shield in to pass through when the key is inserted in 45 section. Fig. 5 is a detached view of the key. the opening ll. The key G is also provided Fig. 6 is a detached plan view of the pawl. with a handle gt, by means of which it may Fig. 7 is a side View of the pawl. Figs. 8 be turned upon its axis. \Vhen the key has and 9 show a modified form of the fastener been inserted through the opening 11 and in which the key is forced endwise in between notch 7L and has entered the opening f it 50 the teeth of the gear-wheel to lock it by the can .only be removed therefrom by turning action of the spiral spring. Figs. 10, 1], and the key until the lip g" is on a line with the notch 72. \Vhen in this position, the key may be withdrawn, and the fastener will then remain locked.

This sash-fastener is to be used either on cars or house-windows, and is an improvement upon the one for which Letters Patent were granted me, No. 819,324, June 2,1885.

Having described my invention, what I desire tosecure by Letters Patent, and claim, 1s

The combination, with the pawl F, located in the box D D, and the shield H, having an opening H and a notch h, of the detachable key pointed at one end and provided with a THOMAS E. ROSS. Witnesses:

XV. P. LEONARD, JAMES M. BRITE. 

